Evaluation of laser surface melting to mitigate chloride stress corrosion cracking in an austenitic stainless steel

dc.contributor.authorBrady, Michael P.en
dc.contributor.committeechairHendricks, Robert Wayneen
dc.contributor.committeememberKnowlton, Katharine F.en
dc.contributor.committeememberDowling, Norman E.en
dc.contributor.departmentMaterials Engineeringen
dc.date.accessioned2014-03-14T21:31:12Zen
dc.date.adate2009-03-12en
dc.date.available2014-03-14T21:31:12Zen
dc.date.issued1990-03-19en
dc.date.rdate2009-03-12en
dc.date.sdate2009-03-12en
dc.description.abstractThis thesis evaluates the ability of laser surface melting to mitigate chloride stress corrosion cracking (See) of type 304 stainless steel. The effects of laser surface melting on microstructure, mechanical state, and corrosion behavior were examined. The major effect of laser surface melting of 304 stainless steel was found to be the introduction of tensile residual stresses on the order of the yield strength in the surface of the laser-melted regions. Exposure of laser-melted coupons to boiling magnesium chloride at 154°C revealed that the residual stresses were sufficient to cause failure by see processes in the absence of an external load. It was concluded that unless measures could be found to eliminate or reverse the residual stresses introduced by the laser melting process, the technique is not viable for mitigating chloride see in these alloys.en
dc.description.degreeMaster of Scienceen
dc.format.extentviii, 75 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-03122009-040851en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-03122009-040851/en
dc.identifier.urihttp://hdl.handle.net/10919/41487en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1990.B723.pdfen
dc.relation.isformatofOCLC# 23604924en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1990.B723en
dc.subject.lcshStainless steelen
dc.subject.lcshStress corrosionen
dc.titleEvaluation of laser surface melting to mitigate chloride stress corrosion cracking in an austenitic stainless steelen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMaterials Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

Files

Original bundle
Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
LD5655.V855_1990.B723.pdf
Size:
28.06 MB
Format:
Adobe Portable Document Format

Collections